Stove



R. W. BELSUN.

'Heating Stove.

No. 22,342. Pavtented Dec. 21, 1858.

UNITE S erica.

ra e

R. IV. BELSON, OF PHILADELPHIA, PENNSYLVANIA.

STOVE.

To all 'whom it may concern.

Be it known that I, R. W. BELsoN, of IDhiladelphia, in the county of Philadelphia and State of Pennsylvania, have invented an Improvement in Stoves, and that the following is a full, clear, and exact description of the principle or character which distinguishes it from all other things before known and of the usual manner of making, modifying, and using the same, reference being had to the accompanying drawings, of which- Figure l is a vertical middle section showing the essential parts of the stove.

My invention consists in certain improvements in stoves whereby I attain an improved draft and also a more perfect combustion of the gases arising from the fuel as hereinafter' set forth.

Around the base of the fire pot I construct an annular chamber a having a. vertical partition and an opening c on one side of Z), communicating with the air of the room; on the other side of Z1 is another opening Z communicating with the vertical passage e made in the outside of the fire pot. This passage communicates with the annular chamber f surrounding the top of the tire pot, this chamber f being pierced on its inner side with numerous small holes g, through which the heated air is to pass to impinge upon the gases arising from the fuel. Leading upward from the passage e is a pipe h which is to convey a stream of hot air directly to the escape pipe t'. In the upper part of the stove is the air heating chamber la consisting of two concentric cylinders having an air heating space between them and constructed and opera-ting upon well known principles; the cold air being led into the space m, through the pipe a and when heated passing out through apertures at the top of the chamber and regulated by a register in the common way. In the center of this air chamber is a passage p, through which passes a hollow shaft connected with an air heater r, which is perforated at its periphery with numerous holes and also near its periphery on the under side. This air heater is a shallow boX or chamber and contains a scroll partition s forming a spiral passage the center of which communicates with the hollow shaft and its outer part with the apertures in and about the periphery of the heater.

rIhe hollow shaft is divided into two parts l and 2, the upper part l being a hollow rod with a screw thread upon its exterior and the lower part 2 a tube with a screw thread upon its interior, the two parts titting together, so that when the rod l is turned around, the heater r attached to the tube 2 is raised or lowered according to the direction in which the screw is turned; tube 2 being prevented from turning around by a feather or groove and guide pin in a way well known to mechanics. The rod l is here shown in connection with the cap plate of the stove in which are holes to match those in the top of the air heating chamber, the cap plate thus being` the hot air register; but it will be found better to make the turn ing of the screw independent of the register.

The operation of the stove is as follows. The cold air enters chamber a at c passes entirely around the base of the lire pot in chamber a and being heated rises through opening CZ into passage c and entering chamber j escapes in small jets over the fire to complete the combustion of the unconsumed gases from the fuel. As the lire is started from the bottom and the heat is great there, even before the upper part of the fire pot is much heated, the hot air for burning the gases is obtained at the earliest moment. A portion of the hot air ascends pipe 7L and produces a jet of hot air at the escape pipe and thus accelerates the draft which is of special advantage in the early stage of the re. The air heater r operates in the following manner. The air enters the upper part of the hollow shaft, passes down into the heater r in which it circulates spirally until it reaches the circumference whence it is thrown out in a highly heated state in small jets over the fuel to mingle with and consume the gases from the fuel. It will be readily seen that the lower heater a operates first and afterward the heater r unites with it to consume the gases, each doing its proportion of work according to the relative intensity of the` re at top and bottom. Now, as the fire is ever varying in height, I make the upper heater r adjustable by means of the screw in the hollow shaft as before described, so that its height or distance from the tire may be varied at pleasure and when fresh fuel is to be added it may be elevated out of the way.

I am aware that an annular chamber with air jets above a iire for consuming gases is l tion with the annular chamber a and escape 10 an old and Well known device and I therepipe z' as described.

fore limit my claim to the improvement 3. I also claim the adjustable heater 9 above described to Wit; constructed, arranged and operating over 1. The combination of the air chamber a the lire substantially as herein described. surrounding the base of the fire pot Wit-h the annular chamber f at the upper part of the lire pot as described.

2. I also claim the jet pipe in combina- R. W. BELSON. Witnesses:

CHAS. G. PAGE, WM. H. HARRISON. 

